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Norbert Meyners, DESY LCTW 09 Orsay, 3.-5. Nov. 2009. DESY Test Beam Facilities - Status and Plan. DESY Test Beam. DESY provides three test beam lines with 1-5 (-6) GeV/c electrons Very simple system, no beam optics, only momentum selection via magnet. - PowerPoint PPT Presentation
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DESY Test Beam FacilitiesDESY Test Beam Facilities- Status and Plan- Status and Plan
Norbert Meyners, DESY
LCTW 09Orsay, 3.-5. Nov. 2009
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DESY Test BeamDESY Test Beam
DESY provides three test beam lines with DESY provides three test beam lines with 1-5 (-6) GeV/c electrons 1-5 (-6) GeV/c electrons Very simple system, no beam optics, only Very simple system, no beam optics, only momentum selection via magnet.momentum selection via magnet.Bremsstrahlung beam generated by a Bremsstrahlung beam generated by a carbon fibre in the circulating beam of the carbon fibre in the circulating beam of the electron/positron synchrotron DESY II. electron/positron synchrotron DESY II.
Photons are converted to electron/positron pairs with a metal plate. Photons are converted to electron/positron pairs with a metal plate. Beam is spread out into a horizontal fan with a dipole magnet.Beam is spread out into a horizontal fan with a dipole magnet.Collimator cuts out final beam.Collimator cuts out final beam.
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DESY IIDESY II
Mainly injector for DORIS and PETRA Mainly injector for DORIS and PETRA (synchrotron light sources). (synchrotron light sources). Long Up Times (10-11 month/a) Demand: High Reliability Not much room for improvements
for the test beamsThe revolution frequency is 1 MHz, the RF frequency 500 MHz, The revolution frequency is 1 MHz, the RF frequency 500 MHz, and the bunch length around 30 ps. The average radius is 46.6 mand the bunch length around 30 ps. The average radius is 46.6 mFor DORIS: DESYII delivers every second cycle (160ms) single bunch For DORIS: DESYII delivers every second cycle (160ms) single bunch
with about 3*10with about 3*1099 positrons at 4.5GeV positrons at 4.5GeV For PETRA: DESYII delivers every fourth cycle (320ms) single bunch For PETRA: DESYII delivers every fourth cycle (320ms) single bunch
with 1*10with 1*101010 positrons (3*10 positrons (3*1010 10 electrons) at 6GeVelectrons) at 6GeVTest beam runs in old PETRA mode at 7GeV possibleTest beam runs in old PETRA mode at 7GeV possible
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DESY Test BeamDESY Test Beam
Ideal DESY II Cycle (no extraction)Ideal DESY II Cycle (no extraction)
The rates are influenced by many parameters.The rates are influenced by many parameters.Ideally, the maximum rate around 1 kHz (3 GeV, Ideally, the maximum rate around 1 kHz (3 GeV, 3mm Cu convert, Collimator ca. 5mm x 5mm, 3mm Cu convert, Collimator ca. 5mm x 5mm, DESY II maximum energy at 7 GeV, no beam DESY II maximum energy at 7 GeV, no beam extraction, no DESY III ramp).extraction, no DESY III ramp).Few hundred Hertz are realistic Few hundred Hertz are realistic
RatesRates TargetTarget
EnergyEnergy 3mm Cu3mm Cu 1mm Cu1mm Cu
1 GeV 1 GeV ~2.2 kHz~2.2 kHz ~ 0.5 kHz~ 0.5 kHz
2 GeV 2 GeV ~4.6 kHz~4.6 kHz ~1.1 kHz~1.1 kHz
3 GeV 3 GeV ~5.2 kHz~5.2 kHz ~1.3 kHz~1.3 kHz
4 GeV4 GeV ~4.4 kHz~4.4 kHz ~1.1 kHz~1.1 kHz
5 GeV5 GeV ~2.8 kHz~2.8 kHz ~0.5 kHz~0.5 kHz
6 GeV 6 GeV ~1.5 kHz~1.5 kHz ~0.2 kHz~0.2 kHz
In practice is the maximal event rate around 2 kHz.In practice is the maximal event rate around 2 kHz.(3 GeV, 3mm Cu convert, Collimator ca. 5mm x 5mm)(3 GeV, 3mm Cu convert, Collimator ca. 5mm x 5mm)
In practice is the maximal event rate around 2 kHz.In practice is the maximal event rate around 2 kHz.(3 GeV, 3mm Cu convert, Collimator ca. 5mm x 5mm)(3 GeV, 3mm Cu convert, Collimator ca. 5mm x 5mm)
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Test Beam LayoutTest Beam Layout
T21
T22
T24 T24/1
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Facilities for Test Beam User Facilities for Test Beam User
All three test beam lines have All three test beam lines have Interlock systemsInterlock systemsMagnet controlMagnet controlPatch panels with preinstalled cablesPatch panels with preinstalled cablesGas warning systemsGas warning systemsFast internet connection (DHCP)Fast internet connection (DHCP)
The user can ask for:The user can ask for:Translation stagesTranslation stagesPremixed gasesPremixed gasesSuperconducting Magnet (1T)Superconducting Magnet (1T)Big Dipole Magnet (1T)Big Dipole Magnet (1T)Beam Telescopes: Beam Telescopes:
MVD TelescopeMVD Telescope EUDET TelescopeEUDET Telescope
The users typically bring:The users typically bring:Data Acquisition incl. computersData Acquisition incl. computersTrigger scintillatorsTrigger scintillators
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Test Beam Area 21 Test Beam Area 21
Recently refurbished -> Recently refurbished -> New home of EUDET telescopeNew home of EUDET telescope
Pixel beam telescope:Pixel beam telescope:6 layers of Monolithic 6 layers of Monolithic Active Pixel Sensor Active Pixel Sensor (MAPS) detectors(MAPS) detectorsDEPFET and ISIS pixel DEPFET and ISIS pixel detectors for detectors for validationvalidationDAQ systemDAQ systemDemonstrator Demonstrator telescope in use since telescope in use since summer 2007 summer 2007
WWW.EUDET.ORGMore informationMore information
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Test Beam 22: ZEUS Telescope Test Beam 22: ZEUS Telescope
Location of ZEUS MVD telescope Location of ZEUS MVD telescope (build in 1998)(build in 1998)
Telescope parameters:Telescope parameters:300 300 m thick m thick single-sided Si strip sensorssingle-sided Si strip sensorsEach plane with 2 sensors Each plane with 2 sensors perpendicular to each otherperpendicular to each otherStrip pitch: 25Strip pitch: 25mmReadout pitch: 50Readout pitch: 50mmActive area: 32x32 mmActive area: 32x32 mm22 Trigger window: 8x8 mmTrigger window: 8x8 mm22
DAQ was upgraded to DAQ was upgraded to EUDET like systemEUDET like system
Plans for next years:Plans for next years:keep telescope runningkeep telescope runningimprove softwareimprove software
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Test Beam 24: EUDETTest Beam 24: EUDET
Large bore magnet:Large bore magnet: 1Tesla, Ø≈85 cm, stand-1Tesla, Ø≈85 cm, stand-
alone He cooling, alone He cooling, supplied by KEK supplied by KEK
infrastructure (control, infrastructure (control, field mapping, etc.) field mapping, etc.) through EUDETthrough EUDET
Magnet fully Magnet fully instrumented at DESY instrumented at DESY and ready for useand ready for use
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Test Beam LayoutTest Beam Layout
T21
T22
T24 T24/1
MD MD MagnetMagnet
MVDMVDTelescopTelescop
ee
PCMAGPCMAG
EUDETEUDETTelescopTelescop
ee
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Review 2008/2009
2008 8 Month Shutdown
A lot of work on the accelerator sub-systems (Complete new water cooling etc.) to increase the reliability of the injector for PETRAIIITest beam vacuum system renewed!
3 User Groups + LCTPC collaboration
2009 7 User Groups + LCTPC collaborationSeveral 1-1½ week breaks due to work on new power supplies!
This task could not be finish in the long shutdown!Should be finished in the shutdown January-February 2010Mainly the LCTPC collaboration was effected
New wave guide to spare RF-system (ready March 2010)
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Outlook 2010
Extend shutdown: Restart 22. February 2010 (tbc.)Machine study weeks every 6 weeks possible (DORIS/PETRA Service Weeks) “No (stable) beam mo-fr 8-12!!! ”
Under discussion: break (2 weeks) in summerThe EUDET telescope should be operational from March onPETRA will NOT start top-up-mode Chance to run DESY II at 7GeV
By the way: Ingrid/EUDET wants to build a demonstrator* telescope by re-using the demonstrator analog pixel chips. Should be ready by end 2010!
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Availability and SummaryAvailability and Summary
DESY test beam is running from 22. Feb on throughout 2010 DESY test beam is running from 22. Feb on throughout 2010 Machine study weeks every 6 weeks possible (DORIS/PETRA Service Weeks)Machine study weeks every 6 weeks possible (DORIS/PETRA Service Weeks)Users can apply for beam time through DESY test beam coordinatorsUsers can apply for beam time through DESY test beam coordinators -> up to three weeks possible, longer terms negotiable -> up to three weeks possible, longer terms negotiable
testbeam.desy.deYou can apply for test beam time at DESYYou can apply for test beam time at DESY
Or contact: [email protected] contact: [email protected]
DESY provides three test beam lines with 1-6GeV/c electrons DESY provides three test beam lines with 1-6GeV/c electrons Very simple system, no beam optics, only momentum selection via magnetVery simple system, no beam optics, only momentum selection via magnetPerfect facility for proof of principle studies, efficiency studies Perfect facility for proof of principle studies, efficiency studies and also resolution studiesand also resolution studiesInfrastructure simple and flexibleInfrastructure simple and flexible
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Back Up Slides
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Schedule 2010 1.Half
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Schedule 2010 2.Half
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Schedule 2009 1.Half
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Schedule 2009 2.Half
